Elanco Logo

Share on

Larvadex™ 10% Feed Premix

Larvadex hero image

Larvadex™ 10% Feed Premix

Larvadex™ is the foundation of any integrated fly control program in poultry production. It contains 100g/kg cyromazine, a powerful insect growth regulator (IGR) that interferes with chitin metabolism at all three larval stages of the fly, thereby preventing their development into adult flies1. Larvadex is effective against house fly (Musca domestica), lesser house fly (Fannia canicularis), false stable fly (Muscina stabulans) & American soldier fly (Hermetia illucens).

Key Product Benefits: 

  • Can be used in broiler, breeder and layer flocks
  • Controls fly larvae, thereby limiting size of adult populations
  • Easy and convenient to administer in the feed
  • Does not impact beneficial insects in poultry sheds when used according to label4 
  • Minimal withholding periods: Zero (0) days for eggs; 3 days for meat 

Pack Sizes

20 kg

Application

Feed Premix

Why Choose Larvadex™?

Larvadex is added to poultry feed and fed normally in the shed. After metabolism, the active ingredient is left behind in the poultry manure, where it works to disrupt the development of larvae present in the manure1-3. With fewer flies hatching, the fly population is controlled at its source, reducing the need for chemical adulticide treatments later in the season. 

Insect-control-POULTRY
Poultry use

Can be used in broilers, breeders and layers

Break-the-Cycle
Controls fly larvae

Limits size of adult fly population

Simple-incorporation
Easy administration

In-feed addition

Larvadex stops fly larvae from developing, thereby preventing the fly population from increasing.

Larvadex™ Important Information

Larvadex™ is the ideal larvicidal product to use strategically with chemical adulticide products in an effective fly control program for your poultry operation. Always read and follow the label directions.

Dosage and Administration

Mix 50 g of Larvadex per tonne of poultry feed. Do not add Larvadex directly to feed. To ensure homogeneous incorporation, thoroughly mix one part of Larvadex to nine parts (by weight) of poultry feed and incorporate 500 g of this 1% premix into a tonne of feed.  Commence treatment when fly activity is noticed.  Continue for 4 – 6 weeks or until fly population is under control.  Repeat when flies re-establish themselves.

Withholding Periods

MEAT: REMOVE ALL MEDICATED FEED 3 days before slaughter for human consumption. EGGS: Zero (O) days  

If manure from poultry fed LARVADEX is applied to land that is used for growing food crops, particularly grain, finite crop residues may occur. To avoid illegal residues: 

  • DO NOT apply manure to soil at rates > 4 dry tonnes/ha/year. 
  • If supplying manure to a third party, ensure that they are made aware of this restraint.

Download Product Label

Product label image

Download Product Label

Please refer to the registered label for full directions of use.

Download

Where to Buy Elector™ PSP?

Larvadex hero image

Contact your local Elanco Representative to find your nearest store. 

Contact Now
  1. El-Oshar, M.A. et al. (1985). Studies on cyromazine in the house fly, Musca domestica (Diptera: Muscidae). J Econ Entomol. 78:1203-07. 
  2. Mulla, M.S. et al. (1983). Evaluation of Larvadex, a new IGR for the control of pestiferous flies on poultry ranches. J Econ Entomol. 76:520-24.  
  3. Awad, T.I. et al. (1984). Morphogenetic and histopathological effects induced by the insect growth regulator cyromazine in Musca domestica (Diptera: Muscidae). J Med Entomol. 21(4):419-26. 
  4. Axtell. R.C. et al. (1983). Efficacy and non-target effects of Larvadex as a feed additive for controlling house flies in caged-layer poultry manure. Poultry Science. 62:2371-77. 

About Elanco

Learn why we're a leading provider of innovative solutions that protect and enhance animal health.

Read About Elanco

Connect with Elanco

Elanco Logo
AustraliaAustralia

PM-AU-23-0281

Elanco acknowledges the Traditional Custodians of Country throughout Australia and their continuing connection to land, sea and community. We pay our respects to all Aboriginal and Torres Strait Islander peoples, their cultures and to their Elders past and present. © 2024 Elanco or its affiliates.